# PR: feat(match): Develop Interactive Musical Compatibility Visualization

[BigBen-7]

PR: feat(match): Develop Interactive Musical Compatibility Visualization

**Closes #15 **

Description

This pull request transforms the static match notification screen into a dynamic and engaging experience by introducing an interactive musical compatibility visualization.

A new reusable React component, CompatibilityChart, has been developed using D3.js to render an SVG-based radar chart. This chart visually represents the shared musical tastes between two matched users across their top genres, providing an immediate and intuitive understanding of their compatibility. The component is animated, responsive, and includes interactive tooltips for a richer user experience.

---

Implementation Details

CompatibilityChart Component

• Data Processing: The component accepts two user profiles as props. It processes their musicProfile data to identify shared top genres and calculates a compatibility score for each, which determines the shape of the radar chart.

• Visualization with D3.js:

  • SVG Rendering: The chart is rendered as an SVG element for scalability and performance.
  • Scales & Axes: D3.js scales are used to map the genre compatibility scores to coordinates on the radar chart. Axes and labels are dynamically generated based on the shared genres.
  • Animation: The chart polygons are animated on initial render using D3's transition API, creating a smooth "drawing" effect that enhances the user experience.

• Interactivity:

  • Tooltips: Hovering over any point on the radar chart reveals a tooltip displaying the specific genre and the compatibility score, providing deeper insight.

• Responsiveness:

  • The component uses a useRef to get the dimensions of its parent container and a useEffect hook with a ResizeObserver to redraw the chart whenever the window size changes, ensuring it is fully responsive on all screen sizes.

---

How to Test

Component Rendering & Animation

1. Navigate to a screen where two users are matched.
2. Observe: The CompatibilityChart component should render. The radar chart polygons should animate into view on the initial load.

Interactivity (Tooltips)

1. Hover your mouse over one of the vertices (points) of the user's polygon on the chart.
2. Observe: A tooltip should appear, displaying the name of the genre and the calculated compatibility score. The tooltip should disappear when the mouse moves away.

Responsiveness

1. Open your browser's developer tools.
2. Resize the browser window to various widths (desktop, tablet, mobile).
3. Observe: The SVG chart should resize gracefully to fit its container without distortion or overflow.